Process of treating garbage.



PATENTED NOV. 13 1906; J. W. SEWELL. I PROCESS OF TREATING GARBAGE.

. APPLICATION FILED SEPT. 15.1905.

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UNITED STATES PATENT OFFICE.

JOHN I/VM. SEWELL, OF BELLEVIEWV, KENTUCKY, ASSIGN OR OF ONE-HALF TOTHOMAS C. PARDINGTON, OF CINCINNATI, OHIO.

Specification of Letters Patent.

Patented Nov. 13, 1906.

Application filed September 15, 1905. Serial No. 278,6 90.

To all whom it may concern.-

Be it known that I, JOHN WM. SEwELL, a citizen of the United States,residing at Belleview, in the county of Campbell and State of Kentucky,have invented certain new and useful Improvements in the Process ofTreating Garbage; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to theletters of reference marked thereon, which form a part of thisspecification.

This invention relates to new and useful improvements in the process oftreating garbage, whereby the same is acted upon under high pressure ofsteam, and condensing all of the fumes and leaving a solid residue oftankage suitable for fertilizing purposes.

An apparatus whereby the various steps of my method or process may becarried out is illustrated in the accompanying drawings, in which Figure1 is a vertical sectional view through the apparatus. Fig. 2 is a topplan view of one of the tanks or cookers in which the garbage istreated, and Fig. 3 is a bottom view of one of said cookers.

Reference now being had to the details of the drawings by letter, A Adesignate two tanks or cookers which are adapted to con tain garbage tobe treated, and each is provided with a manhole A at its upper end andexit apertures O in the bottom thereof, whereby the garbage after beingtreated may be emptied upon the endless carrier B, which is mountedunderneath said cookers. Mounted within each of said cookers is avertical shaft D, having stirrer-arms D thereon, which are provided forthe purpose of agitating the garbage, and a coiled pipe E is alsopositioned within each of the cookers and is provided with perforationsE at intervals, whereby the steam under high temperature may make exitfreely through into the interior of the cooker while the stirrers are inagitation, the stirrers serving to keep the garbage from burning whilebeing treated by the steam under high temperature. F designates a pipecommunicating from a watermain I and leading to each of the cookers.Each cooker is provided with a safety-valve N and a steam-pressure gageO. Each of said steam-coils is provided with an exit end J, which isregulated by a valve J, and G designates a blow-off pipe communicatingwith the lower portion of the cooker.

M designates a condensing-coil positioned in a cooling-tank M, in whichcold water is adapted to circulate, and R and It designate pipes whichcommunicate, respectively, with the two tanks.

L designates a valve-regulated pipe communicating between the twocookers, and H is a valve-regulated p 'pe through which steam issupplied to the coils.

The operation of the apparatus illustrated in carrying out the steps ofmy process is as follows: The garbage is placed in the cookers and steamunder high temperature is caused to pass through the coil of one of thecookers, and as the steam issues through the perforations of the coilitthoroughly heats up the garbage sufiiciently to drive ofi the fumes, andwhile the garbage is being acted upon by the steam the stirrers are putin operation, thereby keeping the garbage from burning. The steam whichissues from the cooker passing into the condensing-coil laden with thefumes of the garbage is condensed and when the batch of garbage has beensuiliciently treated the valve in the passageway communicating betweenthe two cookers is opened to allow the steam to equalize, after whichthe valve in the passage-way between the cookers is closed and thegarbage which has been treated removedfrom the cooker, and the secondcooker may be started up and its contents treated while the other isbeing emptied and replenished. By this process very little odor escapesfrom the apparatus by reason of the fact of the condensing meanspreventing the fumes from escaping to the atmosphere, the water ofcondensation from the coils escaping to a sewer through suitable pipesconnecting the condensing-coils with the sewer-main.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

A method of treating garbage, consisting in subjecting the garbage,while being agitated,

within a closed receptacle, to the action of In testimony whereof Ihereuntoafiix my steam under high pressure introduced into signature inthe presence of two witnesses. the receptacle in a series of jets, andcondensing the fumes, and afterward equalizing the JOHN SEWELL" pressurein a second receptacle, by opening Witnesses: communication between thereceptacles, as Tnos. C. PARDINGTON,

set forth. W T. V, ORAMER.

